1 Answer
1

The type of infection is W32.Packer.MingwGCC-2. Mingw is a compiler after seen on Cygwin for Windows (Minimalist GNU for Windows). I'd say it's trustable.

I haven't been able to locate any information on why this is considered an infections. My best guess though is that it's just a warning because it's packing code (packers allow obfuscation of the code as well as a way to possibly avoid detection from antiviruses - though it has practical uses too).

Edit:
See this page on the ClamAV site, specifically the section on Packers. It explains what a packer is.